<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>PL/Tcl - Tcl Procedural Language</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.1.2 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Server Programming"
HREF="server-programming.html"><LINK
REL="PREVIOUS"
TITLE="Porting from Oracle PL/SQL"
HREF="plpgsql-porting.html"><LINK
REL="NEXT"
TITLE="Overview"
HREF="pltcl-overview.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2011-12-01T22:07:59"></HEAD
><BODY
CLASS="CHAPTER"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.1.2 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="Porting from Oracle PL/SQL"
HREF="plpgsql-porting.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="server-programming.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="Overview"
HREF="pltcl-overview.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="PLTCL"
></A
>Chapter 40. PL/Tcl - Tcl Procedural Language</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>40.1. <A
HREF="pltcl-overview.html"
>Overview</A
></DT
><DT
>40.2. <A
HREF="pltcl-functions.html"
>PL/Tcl Functions and Arguments</A
></DT
><DT
>40.3. <A
HREF="pltcl-data.html"
>Data Values in PL/Tcl</A
></DT
><DT
>40.4. <A
HREF="pltcl-global.html"
>Global Data in PL/Tcl</A
></DT
><DT
>40.5. <A
HREF="pltcl-dbaccess.html"
>Database Access from PL/Tcl</A
></DT
><DT
>40.6. <A
HREF="pltcl-trigger.html"
>Trigger Procedures in PL/Tcl</A
></DT
><DT
>40.7. <A
HREF="pltcl-unknown.html"
>Modules and the <CODE
CLASS="FUNCTION"
>unknown</CODE
> Command</A
></DT
><DT
>40.8. <A
HREF="pltcl-procnames.html"
>Tcl Procedure Names</A
></DT
></DL
></DIV
><P
>   PL/Tcl is a loadable procedural language for the
   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> database system
   that enables the <A
HREF="http://www.tcl.tk/"
TARGET="_top"
>   Tcl language</A
> to be used to write functions and
   trigger procedures.
  </P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="plpgsql-porting.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="pltcl-overview.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Porting from <SPAN
CLASS="PRODUCTNAME"
>Oracle</SPAN
> PL/SQL</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="server-programming.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Overview</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>